Golang Config.CACert方法代码示例

// newDialInfo returns mgo.DialInfo with the given address using the minimal
// possible setup.
func newDialInfo(privateAddr string, conf agent.Config) (*mgo.DialInfo, error) {
	dialOpts := mongo.DialOpts{Direct: true}
	ssi, ok := conf.StateServingInfo()
	if !ok {
		return nil, errors.Errorf("cannot get state serving info to dial")
	}
	info := mongo.Info{
		Addrs:  []string{net.JoinHostPort(privateAddr, strconv.Itoa(ssi.StatePort))},
		CACert: conf.CACert(),
	}
	dialInfo, err := mongo.DialInfo(info, dialOpts)
	if err != nil {
		return nil, errors.Annotate(err, "cannot produce a dial info")
	}
	oldPassword := conf.OldPassword()
	if oldPassword != "" {
		dialInfo.Username = "admin"
		dialInfo.Password = conf.OldPassword()
	} else {
		dialInfo.Username, dialInfo.Password, err = tagUserCredentials(conf)
		if err != nil {
			return nil, errors.Trace(err)
		}
	}
	return dialInfo, nil
}

// newDialInfo returns mgo.DialInfo with the given address using the minimal
// possible setup.
func newDialInfo(privateAddr string, conf agent.Config) (*mgo.DialInfo, error) {
	dialOpts := mongo.DialOpts{Direct: true}
	ssi, ok := conf.StateServingInfo()
	if !ok {
		return nil, errors.Errorf("cannot get state serving info to dial")
	}
	info := mongo.Info{
		Addrs:  []string{fmt.Sprintf("%s:%d", privateAddr, ssi.StatePort)},
		CACert: conf.CACert(),
	}
	dialInfo, err := mongo.DialInfo(info, dialOpts)
	if err != nil {
		return nil, errors.Annotate(err, "cannot produce a dial info")
	}
	dialInfo.Username = "admin"
	dialInfo.Password = conf.OldPassword()
	return dialInfo, nil
}

// newDialInfo returns mgo.DialInfo with the given address using the minimal
// possible setup.
func newDialInfo(privateAddr string, conf agent.Config) (*mgo.DialInfo, error) {
	dialOpts := mongo.DialOpts{Direct: true}
	ssi, ok := conf.StateServingInfo()
	if !ok {
		return nil, errors.Errorf("cannot get state serving info to dial")
	}
	info := mongo.Info{
		Addrs:  []string{net.JoinHostPort(privateAddr, strconv.Itoa(ssi.StatePort))},
		CACert: conf.CACert(),
	}
	dialInfo, err := mongo.DialInfo(info, dialOpts)
	if err != nil {
		return nil, errors.Annotate(err, "cannot produce a dial info")
	}
	oldPassword := conf.OldPassword()
	if oldPassword != "" {
		dialInfo.Username = "admin"
		dialInfo.Password = conf.OldPassword()
	} else {
		dialInfo.Username = conf.Tag().String()
		// TODO(perrito) we might need an accessor for the actual state password
		// just in case it ever changes from the same as api password.
		apiInfo, ok := conf.APIInfo()
		if ok {
			dialInfo.Password = apiInfo.Password
			logger.Infof("using API password to access state server.")
		} else {
			// There seems to be no way to reach this inconsistence other than making a
			// backup on a machine where these fields are corrupted and even so I find
			// no reasonable way to reach this state, yet since APIInfo has it as a
			// possibility I prefer to handle it, we cannot recover from this since
			// it would mean that the agent.conf is corrupted.
			return nil, errors.New("cannot obtain password to access the state server")
		}
	}
	return dialInfo, nil
}

// updateSupportedContainers records in state that a machine can run the specified containers.
// It starts a watcher and when a container of a given type is first added to the machine,
// the watcher is killed, the machine is set up to be able to start containers of the given type,
// and a suitable provisioner is started.
func (a *MachineAgent) updateSupportedContainers(
	runner worker.Runner,
	st api.Connection,
	containers []instance.ContainerType,
	agentConfig agent.Config,
) error {
	pr := st.Provisioner()
	tag := agentConfig.Tag().(names.MachineTag)
	machine, err := pr.Machine(tag)
	if errors.IsNotFound(err) || err == nil && machine.Life() == params.Dead {
		return worker.ErrTerminateAgent
	}
	if err != nil {
		return errors.Annotatef(err, "cannot load machine %s from state", tag)
	}
	if len(containers) == 0 {
		if err := machine.SupportsNoContainers(); err != nil {
			return errors.Annotatef(err, "clearing supported containers for %s", tag)
		}
		return nil
	}
	if err := machine.SetSupportedContainers(containers...); err != nil {
		return errors.Annotatef(err, "setting supported containers for %s", tag)
	}
	initLock, err := cmdutil.HookExecutionLock(agentConfig.DataDir())
	if err != nil {
		return err
	}
	// Start the watcher to fire when a container is first requested on the machine.
	modelUUID, err := st.ModelTag()
	if err != nil {
		return err
	}
	watcherName := fmt.Sprintf("%s-container-watcher", machine.Id())
	// There may not be a CA certificate private key available, and without
	// it we can't ensure that other Juju nodes can connect securely, so only
	// use an image URL getter if there's a private key.
	var imageURLGetter container.ImageURLGetter
	if agentConfig.Value(agent.AllowsSecureConnection) == "true" {
		cfg, err := pr.ModelConfig()
		if err != nil {
			return errors.Annotate(err, "unable to get environ config")
		}
		imageURLGetter = container.NewImageURLGetter(
			// Explicitly call the non-named constructor so if anyone
			// adds additional fields, this fails.
			container.ImageURLGetterConfig{
				ServerRoot:        st.Addr(),
				ModelUUID:         modelUUID.Id(),
				CACert:            []byte(agentConfig.CACert()),
				CloudimgBaseUrl:   cfg.CloudImageBaseURL(),
				Stream:            cfg.ImageStream(),
				ImageDownloadFunc: container.ImageDownloadURL,
			})
	}
	params := provisioner.ContainerSetupParams{
		Runner:              runner,
		WorkerName:          watcherName,
		SupportedContainers: containers,
		ImageURLGetter:      imageURLGetter,
		Machine:             machine,
		Provisioner:         pr,
		Config:              agentConfig,
		InitLock:            initLock,
	}
	handler := provisioner.NewContainerSetupHandler(params)
	a.startWorkerAfterUpgrade(runner, watcherName, func() (worker.Worker, error) {
		w, err := watcher.NewStringsWorker(watcher.StringsConfig{
			Handler: handler,
		})
		if err != nil {
			return nil, errors.Annotatef(err, "cannot start %s worker", watcherName)
		}
		return w, nil
	})
	return nil
}